CEMI - Chembio Diagnostics teams up to develop COVID-19 tests shares up 8% premarket March, 13 2020 07:13 AM Chembio Diagnostics Inc. Chembio Diagnostics (CEMI) Q4 results:More news on: Chembio Diagnostics, Inc., Healthcare stocks news, Stocks on the move, Earnings news and commentary, , Read more ...